Resistor-supporting means for electric resistance furnaces



Dec. 11,1923 1,477,347 H. A. HANDS l RESSTOR SUPPORTING MEANS FORELCTRIC .RESSTAEGE FURM'ES walls ofthe furnace, and the metallic sup- 4metallic supporting member or stirrup 19 may be mounted. A cent-rallylocated depressionf is provided in each of the overhanging Harigeportions of the members 23 Within which the stirrup 19 may be locatedo'revent movement of the member 19 longitu inally of the resistor bar 22which as is well known may expand and contract longitudinally of itslength during the operation of the furnace.

Various modifications may be made in the device embodying my inventionwithout departing from the spirit and scope thereof and I desire thatonly such limitations' shall be placed thereon as are imposed by theprior art or are specifically set forth in the appended claims.

I claim 'as my invention 1. In an electric furnace, in combination, aplurality of relatively narrow refractory members, of substantiallyT-shape, each having a projecting portion provided with an overhangingflange, stirrups supported by said overhanging flanges and `a `resistormember supported by said stirrups.

2.` 'In an electric furnace, in combination,

a plurality of relatively narrow refractory' members,` of substantiallyTeshape, each having an overhangingflange portion, stirrups supportedbysaid overhanging flange portions, embodying means in said flangeportions for holding said stirrups in proper operative position, and aresistor member supported byfV said stirrups.

3. 'In an electricn furnace, 1n combination, a plurality of spaced setsof spaced-apart,

ported at spaced intervals by said stirrups and being self-supportingtherebetween.

4e. ln an electric furnace, in combination,

-a plurality of refractory walls enclosing a furnace chamber, aplurality of spaced Sets of spaced-apart relatively narrow refractorymembers supportedlby one of said walls, each of said refractory membershaving a portion projecting into said chamber` said portion beingprovided with an overhangl ing flange portion, stirrups supported by theIflange portion'of the respective refractory ber supported at spacedintervals by said stirrups and being self-supporting therebetween, andembodying means in said flange portions for preventing movement of saidstirrups longitudinally of said resistor member when the sameexpands andl'contracts during operation of the furnace.

5. ln an electric furnace, in combination, a plurality of refractorywalls enclosing a furnace chamber, a plurality of relatively narrowrefractory members lof substantially T-shape supported by said walls,each having an inner end provided with an overhanging flange, stirrupssupported by. said overlianging flanges, a relatively heavy resistormember supported at spaced-apart points by said stirrups and beingself-sup porting therebetween, and embodying means on said overliangingflange for preventing movement of lsaid stirrups longitudinally of saidresistor member when the same expands and contracts during operation ofthe furnace. A

In testimony whereof, l have hereunto Subscribed my name this 10th dayof Jan; uary, 1922.

HOWARD A. rianne.

'members a relatively heavy resistor-mem-

